The Grey Labyrinth
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|A collection of mind-benders in math and logic. When a solution to one puzzle is posted, another solution-less puzzle is added. With an archive of past puzzles, links to other puzzle-related sites, and a bibliography of works that inspired this site.|
|Levels:||Middle School (6-8), High School (9-12)|
|Math Topics:||Calendars/Dates/Time, Higher-Dimensional Geometry, Euclidean Plane Geometry, Logic/Foundations, Probability, Physics|
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